The equation of x^2=y^2 is represented by which of the following graphs?

×
A

×
B

✓
C

×
D

×
E
The equation of x^2=y^2 is represented by which of the following graphs?
A
B
C
D
E
y^2=x^2
Taking square root of both sides, we get
y=x
For every x, positive or negative, there are two corresponding y values with their absolute numbers are equal to the absolute of x
C is correct choice